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In-Shop Cleaning, Testing & Rebuild
On-Site Cleaning, Testing & Rebuild
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Cleaning & Reconditioning Services
Internal Leak (Cross Contamination)
Detection Service
Cross contamination occurs when a crack or pinhole develops, allowing fluids on side 1 to pass through the plate into the other side and mix with the fluids on side 2. Because a heat exchanger typically does not operate with equal pressure on both sides, the side with the higher pressure will push fluid through the hole into the side with the lower pressure. The result is product in your utility circuit, or worse yet - utility media in your product. Thermaline provides several new, all encompassing, on-site tests that improve test speed and accuracy of any possible cross-contamination issues.
Leak Detection (Integrity Testing)
These tests are recommended annually or bi-annually as part of your preventive maintenance program.
1. Pneumatic leak-down test (General integrity test to sense a problem*)
2. Helium test - ultra sensitive general integrity test. (General integrity test will identify a problem but will not pinpoint its location.)
Further testing: Tests 3 and 4 are used to locate the problem.
3. Flooded NDT test. Circulate a bio-degradable fluorescent dye through one side of the unit followed by a flush. Unit is opened and each plate is viewed with a UV light to locate the problem.
4. Misted NDT test works similar to flooded tests and is typically used on larger units consuming less dye.
Clean in Place (CIP)
CIP is used to clean biological, calcium or other foulants from plates without disassembling the unit.
1. Circulate cleaning solutions to remove foulants
2. Scheduled preventive maintenance CIP
Plate before and after cleaning
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